try the jug because all you have to do is blow on the 1. but if miss the 1, you can blow on the 2, but if u miss the 2, you can blow on the 3, but if miss the 3, blow on the 4, but if you miss the 4, blow on the 1. OR u could sub the 1 with the 3, the 2 with the 4. or you could sub the 1 with the 2......man I could go on and on...thats letting you know that I have a vast understanding of theory when it comes to playing the jug. only if i could apply it to the bass. lol